Material-working mechanism



Sept. 4, 1928 1,682,911

E. N. JORGENSEN MATERIAL WORKING I MECHANISM Filed March 51 1925 s Shets-Sheet 1 Sept. 4, 1928. 1,682,911

E. N. JORGENSEN MATERIAL WORKING MECHANISM Fil ed March 31, 1925 3 Sheets-Sheet 2 7 66 63 5 Liz/6W flairkw/zctflfayensen Sept. 4, 192s.- 1,682,911

E. N. JORGENSEN MATERIAL WORKING MECHANISM Filed March :51, 1925 a Sheets-Sheet Jb pmzszn patented Sept. 4, 1928 S TATE I PATENT orFrc-E.

EDMUND NIELS JORGENSEN, OE GHIGAGO, ILLINOIS, ASSIGNCY'R TO WESTERN ELEG- TRIG. COIELPiLNY, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF YORK.

MATERIAL-WORKING MECHANISM.

Application filed MarchSI'. 1925. Serial no. 19 6721 Thisinventionrelates to'material working 7 mechanisms, and more particularly to. a

mechanismfor feeding rivet blanks" to and positioning" them in material at a riveting position. I

The object of the invent1on is to provide an improved mechanism for rapidly and accurately feeding blanks to and positioning them at a working position. a In accordance with the main features or the invention a plurality of open end tubes, positioned vertically within a vertically reciprocating hopper containing promiscuously arranged headless rivet blanks, serve to collect therein columns of uniformly arranged blanks and position them in predetermined numbers in a plate which transfers themto a working position. The blanks are then removed from the plate and in serted in the positioned work by a plurality of reciprocating plungers after which simul-' taneously operating punches form uniform heads on the ends of the blanks. Access to the feed tubes, should they become" clogged by misshapen rivets, is'afhorded bylatchable separating means;

()ther advantages and" features will become apparent'in the following detailed 'description taken in connection with the accompanyingdrawings, in which Fig. 1 is a front view, PiLItIELllY'lIl section, of the mechanism embodyingthe invention;

Fig. 2 is a section taken on the line-2-2 of Fig. 1 looking in the direction indicated by the arrows;

Fig. 8 is a reduced front view of the mechanism embodying the invention shown at the completion of an operation; v

Fig. 1 is a section taken on the line 4-4 of Fig. 2 looking in the direction indicated by the arrows; d

Fig. 5-is an enlarged detail SGCUUH" taken on the line 5-5'0fhig. 1 showing the latchable separating means, and p Fig. 6 is a perspective view of the riveted article.

i In the/drawings in. which like reference numerals designate like parts throughout the several views, 10 denotes a frame on which are formed bearings 11' and 12 in which liner pins 13 and 14 are slidably mounted. A crosshead 17 is mounted on shouldered portions of the liner pins 13" and in the crosshead 17 are four members 28- which hold insertion plunger-s29 fastened: in

"the members 28'by set screws 30.

Feed tubes 31, four in number, have their lower ends fastened 1n the cross member 2 1 and the upper ends are slldably'mounted in the bottoms of funnel shaped compartments of the hopper 18. Pivotally secured at 32 t0 the crosshead 17 is a hand lever 33 at one end of which 18 shaped a handle 84' and near the opposite end is a hole 36 in which" is fas-= tened one end of a tension spring 37 which is fastened to the framelO. A link 39 is pivotally fastenedto the frame 10 at 4:0 and also to the hand lever 33 at 41. The tension Resting on the spring 3'? serves to'hold thehandle 3 1 of the lever 33in a-raised position and thereby support the crosshead 17 which in turn supports the hopper 18 and other attached mechanism.

It is obvious that when the handle 84 is pulled downwardly the entire apparatus, with the exception of the frame 10, descends with it. A feed plate 4L6 is slidably mountedinthe lower cross member23, and holes 4.7 therein admit rivet blanks 15 from the feed tubes 31. Holes 44 and. 15-located in the lower and uppercross members 23 and 2 respectively, and in alignment with in- 'sertion plunger-s 29 serve to guide the plungersy ()ne end of" the feed'plate 16" is provided with a slot 418 one end of which engages cam- 49; secured to the frame '10 by screws- 50 (Fig. 2). Theblanks 15 rest in the holes 47 of the feed plate 46 and when thehandleSL" of the lever33 is pulled dOwn- V wardly a tension spring 52 causes oneend of the slot 48 of the feed plate to follow the surfaceofthe cam 49 thereby sliding the feed plate tli outwardly until the holes 47 are in alignment with the holes 44 andf45 permitting the blanks 15 to drop'through to the lower part of' the guide holes 4% where steel 'balls 5 1 backed" by springs 55 (Fig. 1) hold the blanks until the plungers 29' insert them in the material to be riveted. The

10 at 71 and secured to the die b l slide the die block in the g spring 78 that supportsa pad '79.

liner pins 18 and 14 engage holes 58 and 59 in a die block 60 thereby assuring perfect alignment of the insertion piungers *with holes in the parts to be riveted which are positioned upon the die block.

When the handle the lever is pulled ig. downwardly a pad (ll formed on the under side the cross member 23 engages the top surface or" the mate rial or parts to be riveted and a continued 'presssure exerted on the hand lever will cause the cross head 17, which carries the members 28, to slide on the rods and con'ipressing the spri gs 26 and 2? ping the material while the ins-c1 iion plunger-s continue to travel dcwnwardly and drive the rivets 15 from their positions in the guide hoes ll into the holes in the material. It will be noted tlltu when the crosshead 1'7 descencs carries the hopper 18 downwardly over the upper ends ofthe feed tubes 31, thus aiding in guiding and positioning the rivets 1;. in the i s 1d tubes.

The die block 60 on which the work is located includes hammers v-rl are t tened in a cylindrical block 6% capable of a slight vertical moi nicn block lis actuated downwardly by a compression spring and this m i is limited by a headed stop screw The die block 60 is slidably mounts! groove 69 in the frame 10 (Fig. A

c r wih so that a movement 0*": this hand love move 69. Located directly behind the tee-ding mechanism, just described, is a riveting uechanism indicated in general by the numeral "Z A ram 73 slidabie in guides supports a head '76 which carries hammers 7. and a T he rain 73 may be driven in any suitable manner (not shown) such as that followed in the usual punch presses. A downv-rard oke of the head 76 brings the pad T9 in cont-a 'ith the top of the work compressing the I 78 and causing the hammers 7"! stri i. ii upper ends of the blanks. Since the blanks used are headless a blow must be struck at each end at the same time to produce a uniform head on each end of the rivet. The

, head 76 carriers a ram 81 which enters a At the same time that the head 76 det' strike the up; er

scends and the hammers when.

ends of the blanks 15 the ram Ell strikes the end 86 oi the member 83 forcing it downwardly and the end 88 upwardly, thereby Should the feed mechanism become clogged I any time the latches 90 and pins J3 are engaged and the handle 34: of the hand lever Z35 drawn downwardly, thereby compressing the sp 'ings 26 and 2? and causing the two members 23 and 24 to separate thus rendering the lower ends of the tubes as well as the transfer plate accessible for the removal of the clogging cause.

In the operation or the mechanism the materials or parts to be riveted are placed on the die block 60, the hopper 18 having been tilled with rivetbianks l5 which guided into the feed tubes 31 by the tunnel shaped compartments formed in the hopper 18. The blanks sl' Le down the feed tubes 3L until the bottom blanks in each column rest in the holes 4? in the feed plate at"). T0 operate the mechanism the handle oi the lever 33 is drawn downwardly, resisted by the tension spring 37, theentire apparatus moves downwardly with the exception of the frame 10 and the bearings 11 and 12 in which the liner pins 13 and 1dare slidubly mounted. The liner pins enter holes 58 and 59 and when the pad .Gl has engaged the top suriaceott the work a continued movement The tension V member 23, in which they are held by the balls 54- and springs 55, and insert them in holes in the material or parts to be riveted. The hand lever 70 is then used to slide the die block 60 under the riveting mechanism by way of the groove 69 (Fig 4). The

riveting machine75 then actuates ant. the hammers 77 and 63 therein form heads upon the ends of the blanks to rivet the materials or parts ashereinbetore described.

Although the mechanism is particularly adapted tor riveting the laminations of composite disk or plate 'inembers as shown in Fig. 6 which may be used as electrical contact members in telephone exchange equipinent it is to be understood that the mechanisii'i may be used for other operations than riveting and for producing a variety of articles. Therefore the invention is limited only by the scope of the appended claims.

What is claimed is:

1. In a material Working mechanism, a tube for delivering blanks to be Worked, a

blank )OSltlODlD member carr in said l a a tube, means for transferring one blank at a time from the tube to an opening in the blank positioning member, means for moving the blank positioning member to its operative position, means for causing the transferring means to operate when the blank positioning member is moved to its operative position, thereby transferring a blank to the positioning member, and means for' moving the blank from the opening in the blank positioning member to the Work.

2. In a material Working IIlQCllElIllSlTl, a

tube for delivering blanks to be Worked,

blank positioning member carrying said tube, means for transferring one blank at a time from the tube to an opening in the positioning member, means for moving the msitioning member to its operative position, a cam for controlling the operation of the transferring means When the positioning member is moved to its operative position fortransferring a blank to the positioning member, means to force the blank from the positioning member into position, and means to retain the blank in the positioning memaccess to the opening in the supporting means.

d. In a material working mechanism, a container for blanks, a feed tube for guiding blanks therefrom, means for supporting one end of the tube and having an opening therein for receiving blanks discharged from the tube, transfer means having an opening therein adapted to register With the opening in the supporting means to receive, a discharged blank, means for limiting theinovement of the discharged blanks through the supporting and transferring means, and means for separating the supporting and limiting means to provide access to the openings in the transfer and supporting means.

5. In a material Working mechanism, a containerfor blanks, a feed tube for guiding blanks therefrom, means for supporting one end of the tube and having an opening therein for receiving blanks discharged from the tube, transfer means having an opening therein adapted to register With the opening in the supporting means, means for limiting the movement of the dischargea'l blanks through the supporting and transferring means, and latchable means for separating and maintaining separated thesupporting and limiting means to provide access to the openings in the transfer and supporting means.

6. In a material Working mechanism, a Work, support, vertically reciprocating means for positioning blanks in Work carried by the Work support, including a tube for supplying blanks and a horizontally reciprocating member for removing one blank at a time from the tube to an opening in the positioning member, and means for expellin the blanks from the positioning means and placing them in the Work.

In Witness Whereof, I hereunto subscribe my name this 18th day of March A. 1)., 1925.

EDMUND NIELS JoneENsEN. 

